add build_iphone.sh for Xcode 4.5+, supports i386, armv7, armv7s
add build_iphone.sh for Xcode 4.5+, supports i386, armv7, armv7s

feuvan/opencore-amr-iOS,inonomori/opencore-amr-iOS,feuvan/opencore-amr-iOS,feuvan/opencore-amr-iOS,inonomori/opencore-amr-iOS,inonomori/opencore-amr-iOS